Pipe clamp



March 3, 1931. s. o. TAYLOR 1,794,476

PIPE CLAMP Filed Aug l, 1928 Patented Mer. 3,1931

tisane STEADMAN o. TAYLOR, or si". tenis, in'ss'icniz'ei PIPE CLAMP4 Appiicatin tiled Aug-11st 1,1928. sentii iro. 296,740.

u This'iiiventionrelates to 'nen7 and useful ii'nproveii'ieiits in elaiiips, and more pai",- tiei'ilarlyto a pipe clainp adapted to support and hold in place an air-line pipe oijsii'nilar 5. pipe beneath a railyvay cai". y k- In order lto supply the inotor fluid for operating` the brakes and signals, certain. lines of pipingkar'emaintained bei'ieathtl'ife rail-Way ears, the pipe lines on each individual cai' being` connected With siniilar lines on the adjacent years by suitable leXibl'e couplings `at the kends of the cara4 These' pipes usually project through' holesiny the transverse diaj pl'iragnis of thebody'bolsters. ,Theiinder frame. construction o'f'ther earcjoiriprises a plurality o'f transv elyex'tendin'g,vertical metallic plates or diaphragnis,an`d the pipes arev usually supported in openings iny these plates. It isessentia'l that the pipes not only be supported, but that they be held securely agaii'ist olti'ng y nifovenieiits andi against lengthwise shifting,niovenients Vcaused by thev abrupt changes iii the' nove'in'eiits of the caras" it travels along` the tracks'. A,

The present invention relates to a iieivand improved forni of `pipe clamp for securing; one of'tliese in oiie of thefvertical plates or diaphragnis'of the car frai'ne, as hereniabove referred to. f l, I j f y The vgeneral vobject of 'the' invention to provide a clamp whichsurrounds a 'portion of the pipe, and .which is provided ijvith separate means for securing vthe clamp -tovtlie l u 'fixed yplate of the car frame and for securing the clanip tothe pipes;W The clainp comprises two separate annular portions Whiehare con? .nee-ted by an arei'iate portijoiiexteiid'ing along one s'ideot the pipe. Both annular portions are externally'threaded andea'cli receives a 40 clamping n ut. One' of vthe aiiiiiil'ar portions has an Aexternal."surface substantially' parallel with the external surface ofthe` pipe', and' the niit thereon cooperates with a shoulder at one end? ofthe' anniilar nie'in'ber forv seein-ing' the 45 clamping,` device inthe, iiredplatre.` fll'ie ternalsurface ofthe other annular member is cylindrical,jbiit'ftheyais of this'` is'inelined at an acute angleto the artis of the pipel so.' that when the niit is rotatedon 5v() this annular"portion, it" ivill nieve ifirto'eii` :.w .i .i ,.i'. J, i l v gageinentavitli aporti'oii of the, pipe to elanip thelpipe betvveen the nut and a portion of the threaded ineinber.

Other obv'e'cts and advantages of theinventionivill he inoreapp'are'nt freink the folloivin` detailedl description of one approved forni of the device.k y p l In `the accoinpanyingl drawings Fig. l vis a vertical longitudinal section through the pipe elai'np, before the pipe is secured therein. Y p c Fig. 2 is a vie'iv siinilar to Fig.. l shoving the pipe iny place and the clainp nioved to clamping position.` n

l, Fig: 3 is a'v perspective view, in central section, of t-lietliie'afded ineniber of the',V elainp which surrounds the pipe. y 4 Y Q Figt is a perspective, in central section, ofthe pipe-engaging nut. 1 v Y A Fig. 5 ris a ti i'isverse section takeiisub'- stantially on the lineI 5-.5 of Fig". 2.

At, l ifs s'lioivn a section ofthe pipe, ivhieh Y is, adapted'fto,be'passedftlirough 'a circular opening 2 in the metal pla-te or diaphragm 3,

`which fornis a portion ofthe under fiaine of the car. The ,opening issufiicieiitly large to receive one of the annular elements of the 1 ,x i v `.1

pipe elanip, as hereinafter described.,

yThe main tubular elementk lof, the pipe elainpcompris'esan annular portion 5 and a second annular portion 6,*the portions 5 and 6 beingy connected byvan arcuate portion?, iijh'ich'extends alongone sideof the pipe l. A' single continuons cylindrical passagev of snievvhat vgreater diani'eter than the extern al diameterofpipe 1.,.eXtends tl'irougli the two annular eleinents 5 and 6, the inner surface of the arciiateconneeting ineinber 7 forming a coi'itinuatioii ofthis saine cylindrical'surface.

Alpairofinterior spaced ai'iartribs` 18 and lli being adapted vto be engaged in one end of opening 2 in plate 3, and a nut 11 threaded on the outer surface 9 of ring 5 has acrowned inner end 12 adapted to be clamped against the opposite face of plate 3. e

The outer surface of annular portion or ring G and also of the arcuate connecting member 7, is also cylindrical, but theaxis of this cylinder is inclined to the axis of the pipe l, so that this surface, if extended, would intersect the surface of the pipe where the member 4 is cut away at S. This cylindrical .surface is threaded at 15'. to receive a nut 111-. A portion of the inner surface of this nut 1l is "tlnfeaded internally at 15 to engagev the threads 13, and has ai-ing extension Vlprojet-ting toi 7ard plate 3, with an inner surf ace 17 beveled at such an angle that it will conform substantially to the outer surface of pipe l when the nut 14 is screwed inwardly, as shown in Fig. 2.

The pipe clamp is {irst assembled, as shown in Fig. 1, with the portion projecting through opening 2 in plate 3, and the nuts 11 and 14 partially screwed into position, as shown in Fig. 1. The pipe 1 may now be placed in position by sliding same through the member 1-, as indicated in Figs, 1 and 2. By tightening the nut 11, the shoulder 10 will be drawn against one surface of plate/v3 and the crowned face 12 of nut 1l will be drawn against the Vopposite surface of the plate so as to securely lock thepipe clamp in position in the. supporting plate y3. The nut 14 is now screwed inwardly until the inner surface 17 in the ring extension 16 engages with one side of pipe 1, drawing ribs 18 and`19 at the opposite side of ring 6 and arcuate portion 7, into firm engagementwith the opposite side of pipe 1.v The nut 14 will be screwed in until the pipe is clamped firmly in. place. A three point gripon the pipe will be obtained as indicated at 17,4 1S and 19, Fig. 5. It will be apparent that any at-` tempted lengthwise movement of the pipe 1 will only serve to cause a further cant-ing of the inclined locking members 6 and 14,'thus tightening the grip upon the pipe. It `is not essential that the ribs 18 and 19 extend the complete length of the element 4', since any sort of spaced projections within annular member k6 wouldbe sulicient forthe-purpose. The ribs might even be omittedentirely and the inner surface kof arcuate member A7 andY Y It will be'apparent that numerous modifi-V cations might be made in the form and proportions of this device, and it isto be understood that all such modificationsv and equivalent constructions come within the scope of this invention as defined by the following claims.

I claim:

1. A pipe clamp comprising a portion adapted to be secured to a lixed plate, an annular portion adapted to surround the pipe, and a portion arcuate in cross section connecting the first portion to the annular portion whereby a portion of the pipe is left exposed opposite the arcuate portion of the clamp, the-annular portion having a threaded external cylindrical surface the axis of which is inclined at an' acute angle to the axis of the pipe, and a nut threaded on this portion and adapted to be rotated into engagement. with the exposed portion of the .l

pipe.

2. A pipe clamp comjn'ising a member adapted to'surround the pipe and be clamped in an opening in a fixed plate, the member hzwing a portion projecting` along one side of the pipe at one side of the plate and terminating in an annular member surrounding the pipe, a section of the pipe remaining exposed opposite the projecting portion of the clamp and adj acentv the annular member the annular member having an external threadedcylinclrical surface which if extended would intersect the pipe at an acuteangle, and a nut threaded on this annular member and adapted to be screwed into engagement with the pipe to clamp the pipe between the nut andthe projecting portion of the member. Y

3. A pipe clamp comprising a member formed of two annular portionsv kadapted to surround the pipe, the two annular portions being connected by an arcuate portionexten ding along the pipe at oneside thereof the opposite side of the pipe being exposed, each annular portion having an external threaded `cylindrical surface, one of these surfaces being substantially parallel with the external i surface of thepipe and adapted to extend through an openingy in a fixed plate, there being a shoulder at one end of this annular portion adapted to engage the plate at one end of the opening. ak nut. threaded on the annular portion and adapted to engage the opposite side of the plate, the threaded external surface of the otherannular portion being inclined at an acute angle to the pipe so as to intersect the same if extended,` and a nut threaded on this port-ion so that when screwed inwardly it will engage the exposed sideV of the pipe between the two annular members. v

4. A pipe clamp comprising a member formed of two annular portions adapted to surround the pipe, the twoannular portions being connected by an arcuate portion extending along the pipe at one side theref 1GO of the opposite side of the pipe being exposed,`

each annular portion having an external threadedcylindrical surface, one of these surouter surface of the arcuate connecting portion, and a nut threaded on these portions so that when screwed inwardly it will engage the exposed portion of the pipe between the annular portions at the side there-of opposite the arcuate portion.`

5. A pipe clamp comprising amember' formed of two annular portions adapted to surround the pipe, theV two annular portions being connected by an arcuate portion extending along the pipe at one side thereof the opposite side of the pipe being exposed, means for securing one of the Vannular portions within the opening in a fixed plate, the

externally threaded cylindrical surface of"l the other annular portion being inclined at an acute angle to the surface of the pipe so f as to intersect the same if extended, and a nut threaded on this portion so that when rotated inwardly it will engage the exposed portion of the pipe between the two annular members.

6. A pipe clamp comprising a member formed of two annular portions adapted to surround the pipe, the two annular portions being connected by an arcuate portion extending along the pipe at one side thereof, the opposite side of the pipe being exposed, means for securing one of the annular portions withinthe opening in a fixed plate, the externally threaded cylindrical surfacev of the other annular portion being inclined at an acute angle to the surface of the pipeso as to intersect the same if extended, this threaded surface also extending alongthe outer surface of 'the ar-- cuate connecting portion, and a nut threaded on these portions so that when rotated ,inwardly it will engage the exposed surface of the pipe between the two annular portions.

7. A pipe clamp comprising a portion adapted to'besecured to a fixed plate, an annular portion adapted to surround the pipe, and a portion arcuate in cross section connecting the first portion to the annular portion, the pipe being exposed at the side opposite the arcuate portion of the clamp,"tlie annular portion having a threaded external cylindrical surface, the axis of which is inclined atan acute angle to the axis of the pipe, a nut threaded'on this portion and adapted to be rotated into engagement with the pipe at one side thereof, and a pair of spaced inwardly extending projections within the annular member positioned to be drawn into engagement with the side of the pipe opposite that engaged by the nut.

81 A. pipe clamp comprising `a portion adapted to be secured to a fixed plate, an annular portion adapted to surroundthe pipe, and a portion arcuate in cross section connecting the first portion to the annular' portion, the pipe being exposed at the side opposite the arcuate portion of the clamp, the annular portion having a threaded external cylindrical surface, the axis of which is inclined at 'anacute angle to the axis of the pipe, the outer surface of the arcuate portion being correspondingly threaded, there being a pair of spaced apart ribs within the arcuate portion and annular portion adapted to engage the pipe, and a nut threaded on the annular andarcuate portions and adapted to be rotated into engagement with the pipe at the side opposite the pipe-engaging ribs.

9. A pipe clamp comprising a member formed of two annular portions adapted to surround the pipe, the two annular portions being connected by an arcuate portion extending along the pipe at one side thereof, the pipe being exposed at the side opposite the arcuate portion of the clamp, there being a pair of spaced apart pipe-engaging -ribs extending longitudinally of the lmember within the arcuate and annular portions, each annular portion rhaving an external threaded cylindrical surface', one of these `surfaces being substantially parallel with the external surface of the pipe and adapted to extend through an opening in a fixed plate, there being a shoulder at one end of this annular member adapted to engage the plate at one end of the opening, a nut threaded on this annular portion and adapted to engage the other side of the plate, the threaded external surface of the vother annular portion being inclined at an acute angletothe pipe so as to intersect the .same if extended, this threaded surface also extendingV along the outer surface of the ar- `cuate connecting portion, and anut threaded on these portions so that when rotated inwardly it will engage the pipe between the sTnADMAN o. ramon 

